r'\s*(c\d+-\d+c[0-2]s(?:\d|1[0-5])n[0-3]):\s+service',
line)
if cname:
service.append(cname.group(1))
empty = re.search(
r'\|\s+empty\s+\[',
if empty is None:
print('Found {} service nodes.'.format(len(service)))
return service